Safety gas-regulator.



J. C. REYNOLDS.

SAFETY GAS REGULATOR,

APPLICATION FILED IAN. 18, 1910.

Patented 0G13. 27, 1914.

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JOHN C. REYNOLDS, OF RIXFORD, PENNSYLVANIA.

SAFETY GAS-REGULATOR.

misant.

Specification of Letters Patent.

Patented @et 27, 11914,.

Application led January 18, 1910. Serial No. 538,741.

T0 all whom t may concern Be it known that I, JOHN C. REYNOLDS, a citizen of the United States, and resident of Rixford, McKean county, State of Pennsylvania, have invented a new and useful lmprovement in Safety Gas-Regulators, of

which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a sectional view through one form of my improved regulator; Figs. 2 and 3 are similar views showing a modified form of adjustment for the valve; and F ig. 4 is a sectional view through a portion of the casing showing another' form of adjustment for the valve.

My invention relates to regulators for controlling the flow of gasto a burner and is designed to4 provide a simple, cheap and efficient device of this character, which will prevent the pressure exceeding a certain pref determined limit without entirely shutting ofi the flo-w of gas when the pressure exceeds this limit. Also in providing means for adjusting the height of the valve with relation to its seat, so as to feed a predetermined amount of gas to the burner.

' The precise nature of my invention will be best understood by reference to the accompanying drawings, which will now be described, it being premised, however, that various changes may be made in the details of construction and general arrangement ot parts, without departing from the spirit and scope of my invention as dened in the appended claim.

lin Fig. 1 of the drawings, the numeral 2 designates the casing of a gas pipe connection or fitting, containing a separatin bridge or partition 3. This bridge is provi ed with an orifice 4, around which is formed a seat for an upwardly moving conical valve 5. This valve 5 is provided with a downwardly extending stem 6, which is arranged to slide or move in an orice 7 in a cap 8. The cap 8 is provided with a screw threaded portion which engages the screw threads in an opening in the bottom of the valve, and it is also provided with a flange to engage a seat on the casing to seal the opening. Extending upwardly through the cap 8 is an adjusting screw 10, which is provided with screw threads engaging a threaded orifice in the central portion of the cap. This screw 10 is provided with a knurled head 11, and 12 is a jam nut on the screw 10.

13 is a packing ring or washer which surrounds the screw 10 and is interposed between the jamming nut 12 and the face-of the cap 8, and is provided to seal the opening through which the screw 10 passes.

14 is a by-path which extends through the valve 5, and is provided to allow the gas to iow from the inlet side of the chamber to the outlet Side when the valve is closed.

The operation of the device is as follows: lhe regulator being placed in thepipe leading from the supply to the burner, the gas will pass through it in the direction indicated by the arrows in Fig. 1. The weight of the valve should be equal to the desired pressure for the outlet side of the casing. The screw 10 is adjusted to raise or lower the valve to give the required opening between the valve and the orifice in the bridge or partition, to feed the proper amount of gas for the burner, and the jam nut 12 is then screwed against the packing ring 13 to seal the opening and to lock the screw 10 in its adjusted position. As the gas flows through this regulator, it presses on the bottom of the valve and tends to close it, this pressure being opposed by the weight of the valve. Whenever the pressure exceeds the weight 'of the valve, it will force the valve to its seat and the supply will be cut vofi except for the small amount passing through the by-path 14 in the valve, which will supply sufficient gas to keep the burner lighted. As soon as the pressure is lowered to a point where the weight of the valve is slightly greater than -the pressure, the valve will drop and allow the gas to pass through the orifice 4, as before described.

It is sometimes desirable vto place the valve adjusting device in the interior of the casing so as to prevent tampering with the set of the valve. This is advantageous in public places to prevent unauthorized persons from varying the supply to the burner. In Figs. 2, 3 and 4, l have shown several modified forms in which l have shown practical means for accomplishing this purpose.

In Fig. 9 l have designated all of the similar parts by the same reference numerals with the letter a aiixed. lln this construction 15 designates a set screw which is placed in an orifice in the inside of the n. in

and 'oy regule-ting this sees-: 'die of lie valve een fie adjustei'l5 e @up is inserted iu place to om portion o tlm lo this oo ustruetion l have shown e luy-path lle which extends through the partition or bridge 3.

- rer lthe valve and. .increase the o' the openinge or :in additional liner may; be ir 'ted to diminish elle sise of the' opone iug. -l'u this ligure i have designated all of the similar parts by the seme reference numeral with the letter Il; affixed.,

lu F i l shown the cap 8C and s small portion of the casing 2. The valve stein SL of the vulve 5 is provided with an adjusting screwv siniilsrto the adjusting sei'ewl in Fig. 2, for adjusting; the height or the valve.

Heretoore in devices of this character ther valve was opened sind held from the sent by rhesus of a spring. lisve discovered that springs are not to be relied. for :i length of timo,-snd also that it is very diicult to manufacture s plurality of springs of equal power.

The advantages 'of my 'invention Will be apparent to those skilled, iii the art,- sinoe the danger arising from' 'excessive pressure :it the burner is done witliby means o t o vali/'e which "is closedvlWh-eri the .pressure above, a. predeterminedrpoint; and which is agsinopenedvheu the presy sure is reduced below the jWeight of the.

'mlvel' By this arrangement, l am also said eesiugliaving o horizontally disposedv iiilet :it one end and a horizontally disposed outlet at the other end, a partition luiiug s horizontal portion between the inlet and outlet, 'there being :i Vertical opening through seid partition, evolve seat on the under side thereof, there being a threaded. opening through the bottoni Wall of the casing in line with the opening through the partition, a screw plug seated. therein, there being e recess iu the sereT plugfaI cheek valve having e. downwsrdlyf extending member seated 'int the recess in the screwplug. sind guided therein,A said cheek valve being arranged to'be'moved upwardly 'to engage the seat surrounding theA opening through 'the partition yWhen aezreess pres surev of 'ges passes through the Valve, adjusting screw for limiting the downward. movement of the Avalve extending through the serew plugyaud means for seouring seid screw plug in its adjusted posities, substantizilly as described.'A

.ln testimony whereof, have hereunto set my hand.

Y l JHN C. REYNOLDS. W'itnesses:

JESSE B; HLLER, H. 'M'. CORWIN. 

